About the Co-sleeping Atlas
The Co-sleeping Atlas is published by FamBed, a Danish company that makes family beds. We have brought together what research, public authorities, Google searches and comments say about sleeping together as a family, with a clickable source for every figure.
Research, official guidance and measurements. Each figure includes the children's ages, what was measured and when, as figures measured in different ways cannot be compared directly.
FamBed's count of Google searches and Google's own suggested searches. A search does not represent a co-sleeping family; it shows interest and questions.
FamBed's review of comments, posts on open parenting forums and celebrities' own statements. Those posting are not representative of all parents.
The methodology at a glance
Search volumes: Data from Google's search volume tool (Keyword Planner), covering 26 European countries and the USA over 48 months. The headline figures use the most recent 12 months and are converted into searches per 1,000 children born (World Bank 2024).
Changes over time: Word frequency in Google's book search tool (Ngram, 1970-2022), the number of research articles in PubMed (1970-2025), Google Trends (2004-2025) and Wikipedia page views (2016-2025), all retrieved on 30 October 2026.
Google suggestions: 3,709 searches we carried out on Google and the suggestions Google returned, across 12 languages in 18 countries and language regions.
The comments: 10,790 comments, read and categorised by two independent AI models using set rules, with a third acting as judge (agreement 84.7%).
Parenting forums: Open threads from parenting forums in 11 countries, read and quoted verbatim with names omitted. They show what parents write, not what everyone thinks.
Research, public authorities and history: Every source was opened and rechecked in October and November 2026. All quotes are verbatim.
Public figures: Only their own public statements, checked against the original source.
Publisher: FamBed sells family beds. That is precisely why every figure includes its limitations and why we present both sides of the research.
Corrections: If you spot an error, we will correct it and note the correction on this page.
For media, bloggers and everyone else
Use the figures
You may use FamBed's graphics, figures and data from the Co-sleeping Atlas free of charge, including for commercial purposes, provided you credit "FamBed's Co-sleeping Atlas" as the source and link to this page. (CC BY 4.0)
CC BY 4.0 is a well-known open licence used by media and researchers. It means exactly what it says: you may use the material as long as you credit the source and link to it.
What you can do
- Use the graphics, figures and data in articles, blog posts, assignments, presentations and on social media.
- Use them for free, even if your website or business makes money.
- Display a graphic on your website, use it as an image or quote a figure.
- Translate or modify a graphic, provided you state that you have changed it.
What you must do in return
- Credit »FamBed's Co-sleeping Atlas« as the source.
- Link to the page in the atlas where the figure appears. The codes provided here already include the link, so you do not need to find it yourself.
What the licence does not cover
The licence only covers FamBed's own graphics, analyses and data. Studies, texts published by public authorities, quotes from public figures and social media comments belong to their respective authors. You may, however, use FamBed's graphics based on them. If you want to reproduce the study, text or quotation itself, the original publisher's own rules apply. The source is listed beneath each graphic.
How to use the material
- Find the graphic or figure. Beneath each graphic, you will find the »Use the graphic« button, and beneath each headline figure, you will find »Use the figure«.
- Choose how you want to use it. Billede is the easiest option: you download the graphic as a standard image with the source shown at the bottom. Embed displays the graphic directly on your website using code, so it is updated whenever we update the figures. Cite provides a ready-to-use sentence with a link and source citation for assignments.
- Select Copy, then paste it onto your page. The link to the atlas is included in what you copy.
Example: embedding
The embed code for the graphic “Searches peak in January”. It displays the graphic with the source included and a standard link to the atlas directly below.
Example: citation
A ready-to-use sentence with a link. The link is included when you paste it.
According to FamBed's Co-sleeping Atlas, January is the month when Europeans Google co-sleeping and family beds the most, with 32% more searches than in an average month.
Codes for all graphics and figures
Click the button next to a graphic or figure to get the codes.
Homepage
- Europe on one map
Google search interest
- 1,136 Annual Google searches in Germany per 1,000 children born
- 5.8 x Adjusted for the number of children born, Germans search 5.8 times as often as the other 25 countries combined: 1,136 versus 196 searches per 1,000 children born
- +32 % more searches in January than in an average month across Europe
- The ranking depends on which terms are counted
- Searches peak in January
- Germany accounts for a large share of searches
- Finland searches for sleep training, Sweden for co-sleeping
- Searches for parenting approaches are falling fastest
- Sleep training and co-sleeping track together
Interest over time
- 4 x times as much interest in co-sleeping on Google worldwide in 2025 as in 2010
- 13 x times as much interest in “Familienbett” (family bed) on Google in Germany in 2025 as in 2012
- 63 research articles a year now focus on sleeping together
- Four sources on one timeline
- Searches in your country
Space and money
- 1,136 versus 11 Google searches per year for co-sleeping and family beds per 1,000 children born in Germany (the most) and Romania (the fewest)
- 61.5% of children in Romania live in overcrowded homes, meaning their home has too few rooms for the family
- 26 countries are included in the comparison
- Wealth, living space and Google searches
Who sleeps where
- 83 % of children aged 0-3 in Vietnam slept in their parents' bed
- 5 % of children aged 0-3 in the UK slept in their parents' bed
- 57 vs 4 % Another measure from the same study found that 57% of young children in the Western countries fell asleep alone in their own bed at bedtime, compared with 4% in the Asian countries
- Where do children aged 0-3 sleep?
- Figures from the rest of Europe
- Figures from Asia and the Middle East
- Fact-check: “93% of 3-10-year-olds sleep with their parents”
For how long?
- 12 out of 12 languages in which a child's age is the biggest topic in Google's co-sleeping suggestions
- 42 % of suggestions in Dutch relate to a child's age, the highest share of all 12 languages
- 16 out of 18 of the countries and language regions we studied have suggestions about children aged 10 or over
- What parents type into Google
- How old are the children who sleep in their parents' bed?
- When is a child too old for their parents' bed?
The history
- 12 of 105 traditional societies worldwide where children slept alone
- under 200 years since it was normal for families to share a bed in Germany, the UK and the US, according to experts
- 25.3% of children in the EU now live in homes with too few rooms for their families under the EU's definition (2025)
- Scenes from the history of beds
- From a shared bed to a room of their own
- Who did children sleep with?
- Space in the home
The research
- 16.599 British children in the largest longitudinal study: sleeping in their parents’ bed at 9 months old was not associated with anxiety, sadness or restlessness between the ages of 3 and 11
- 659 scientific papers reviewed in a major 2017 review: no convincing evidence that sleeping with parents harms or benefits children
- OR 2,83 in a British study of 7.077 children (2026): children who first began sleeping in their parents’ bed between the ages of 1½ and 3½ had nearly three times the odds of having an anxiety disorder at age 8
- All studies at a glance
- Selected studies from both sides
The authorities
- 18 countries where we reviewed the official guidance: 16 in Europe, plus the USA and Japan
- 0 of the official guidance warns against co-sleeping with children over 1 year old
- 3–12 mos. is how long the guidance on where babies should sleep applies, from the first 3 months in Sweden to the entire first year in Germany
- Three types of guidance in Europe
- How long does the advice apply for?
Who says what?
- 44 of the 106 organisations advise against sharing a bed with a baby. 27 say that the baby's own bed is safest, but offer advice to those who do share
- 28 organisations describe sharing a bed with a baby as the parents' choice and offer advice on making it safer
- 21 out of 31 breastfeeding and parent organisations describe it as the parents' choice
- Who supports sharing a bed with a baby, and who opposes it?
- What do organisations in your country say?
- What do they say about older children?
- The largest online profiles
What people say
- 79.6% of those expressing a view are in favour of sleeping together. 19.2% are against it, while the rest are both for and against
- 41 vs 15% of the critical comments mention the adults' lives, such as sex and sleep
- 279 vs 275 of 6,289 comments are about pets in bed and sex lives
- For or against co-sleeping
- When criticism is directed at someone, it is usually the adults
- Pets are mentioned just as often as sex and intimacy
- Most-liked comments
- What are people talking about?
- How many are against it in each language?
How families sleep
- 64% of 3.146 parents who sleep with their children had not planned to do so before the birth
- 27% of Danish parents sleep in the same room or bed as at least one child (2019)
- 2.4-2.8 m is how wide most of the family beds described by parents in the forums we read are
- How wide are family beds?
- A wider bed doesn't mean more room: the child takes the middle
- In Japan: same room, separate futons
- School-age children in the family bed
- Judged either way
- Unplanned, but preferred
- Norms and practices in Denmark
- Children come into their parents' bed at night
Celebrities
- 196 celebrities across 32 countries have talked about co-sleeping with their children
- 118 vs 8 Of the 167 statements from interviews and the media, 118 support co-sleeping and 8 oppose it. 34 are both for and against it, and 7 are neutral
- 54 of the 167 statements concern children aged 6 or over
- What celebrities say
- More celebrities who have spoken about co-sleeping
- How big are celebrities' beds?
Adults, couples and pets
- 15 % of UK couples living together slept separately in 2020
- 8 vs 17 % of UK couples with two children slept separately in 2020, compared with 17% of couples with no children living at home
- 44 % of Danish dog owners let their dog sleep in their bed (Dyson 2022)
- Couples sleeping separately in the UK
- Other surveys
- Dogs and cats share the bed in many Danish homes
- What research tells us about adults
- Dogs and cats in bed: surveys from 9 countries
Press
Are you a journalist or do you have questions about the figures or methodology? Email hello@fambed.com.
For AI assistants
AI assistants and others may use the figures as long as FamBed's Co-sleeping Atlas is credited and linked. Link to the atlas page where the figure appears, for example https://fambed.co.uk/co-sleeping-atlas/google-search-interest. Licence: CC BY 4.0. Credit: “FamBed's Co-sleeping Atlas”.
All sources used on this page
Google search interest
Interest over time
- Google Books Ngram Viewer (books up to and including 2022)
- PubMed, NCBI (research articles)
- Google Trends, worldwide co-sleeping topic
- Wikipedia, page views (Wikimedia)
- Google Trends (retrieved 30 October 2026)
Space and money
- World Bank, GDP per capita at purchasing power parity, 2025
- Eurostat, children living in overcrowded homes (ilc_lvho05a)
Who sleeps where
- Mindell et al. 2010, Table 5
- falling asleep alone: Mindell et al. 2010b
- Bharti, Malhi and Kashyap 2006 (Chandigarh)
- Barathy et al. 2017 (Puducherry)
- Lo 2016, 1,253 children
- Yang et al. 2022, 1,564 children
- Mazi et al. 2026, 437 children
- Gupta et al. 2016, 831 schoolchildren
- Jacquier and Newman 2017, 2,891 schoolchildren
- Poulain et al. 2026, 101 children
- Italian research review
- Brambilla et al. 2017, 2,030 children
- 901 Italian schoolchildren
- Svenska Dagbladet
For how long?
- Jenni et al. 2005, 493 children followed from 1974 to 2001
- Marakovitz et al. 2023, 917 preschool children
- Liu et al. 2003, 517 schoolchildren
- Talker Research for Newsweek, 1,000 Americans, 2-6 November 2024
The history
- Bishop Juan de San Clemente, 16 May 1583, translated in a collection of sources published by Cambridge University Press
- Sarah Ann Robin, The Luminary (Lancaster University)
- William Buchan: Domestic Medicine, 12th edition, London 1791
- Frances Long: PhD thesis, University of York, 2022
- Isabella Beeton: Mrs. Beeton's Book of Household Management (1861)
- Pye Henry Chavasse: Advice to a Mother, 13th edition (1878)
- Tom Crook: Norms, Forms and Beds, Body & Society 2008
- Mikkel Venborg Pedersen (Videnskab.dk, 2017)
- Nora Imlau (Personal blog post, 2011)
- Helen Ball's sleep centre at Durham University (Basis, 2025)
- Anouk Van Nuffel (VRT NWS, 2026)
- Standard Cross-Cultural Sample, SCCS1710 via D-PLACE
- Eurostat ilc_lvho05a (2025)
- Eurostat ilc_hcmh02 (2023)
- Eurostat: when a home is considered overcrowded
The research
- Mileva-Seitz et al. 2017
- Bilgin et al. 2024
- Barajas et al. 2011
- Okami et al. 2002
- Bilgin et al. 2026
- Santos et al. 2017
- Chen et al. 2021
- Luijk et al. 2015
The authorities
- 1177 Vårdguiden
- 1177 Vårdguiden
- Asociación Española de Pediatría
- National Institute for Health and Care Excellence
- UNICEF UK Baby Friendly Initiative
- Bundesinstitut für Öffentliche Gesundheit
- Bundesinstitut für Öffentliche Gesundheit
- こども家庭庁
- Öffentliches Gesundheitsportal Österreichs
- Sundhedsstyrelsen
- Helsenorge / Helsedirektoratet
- Assurance Maladie
- Nederlands Centrum Jeugdgezondheid
- Kind en Gezin
- ONE
- Health Service Executive
- Universitäts-Kinderspital Zürich
- Hoitotyön Tutkimussäätiö
- American Academy of Pediatrics
- Provincia autonoma di Bolzano / Ministero della Salute
Who says what?
- Sundhedsstyrelsen (Denmark)
- Sundhed.dk - Patienthåndbogen (Denmark)
- Landsforeningen uventet barnedød (Norway)
- Ammehjelpen (Norway)
- Helsenorge (Norway)
- Socialstyrelsen (Sweden)
- 1177 (Sweden)
- Spädbarnsfonden (Sweden)
- Akademiska sjukhuset (Sweden)
- Imetyksen tuki ry (Finland)
- Uniliitto (Finland)
- Mannerheimin Lastensuojeluliitto (Finland)
- Keski-Suomen hyvinvointialue - Sairaala Nova (Finland)
- Heilsuvera (Iceland)
- Ljósmæðrafélag Íslands (Iceland)
- La Leche Liga Deutschland e.V. (Germany)
- Arbeitsgemeinschaft Freier Stillgruppen e.V. (AFS) (Germany)
- Deutsche Gesellschaft für Kinder- und Jugendmedizin e.V. (DGKJ) (Germany)
- Gemeinsame Elterninitiative Plötzlicher Säuglingstod Deutschland e.V. (GEPS) (Germany)
- Bundesinstitut für Öffentliche Gesundheit (BIÖG), kindergesundheit-info.de (Germany)
- WHO/UNICEF-Initiative Babyfreundlich Deutschland (Germany)
- Stiftung Kindergesundheit (Germany)
- SIDS Austria (Austria)
- La Leche Liga Österreich (Austria)
- Verband der Still- und LaktationsberaterInnen Österreichs (VSLÖ) (Austria)
- Medizinische Universität Wien, Universitätsklinik für Kinder- und Jugendheilkunde (Austria)
- Oberösterreichische Gesundheitsholding (OÖG) (Austria)
- Österreichische Gesellschaft für Kinder- und Jugendheilkunde (ÖGKJ) (Austria)
- Frühe Hilfen Österreich (Austria)
- Pädiatrie Schweiz / Société suisse de pédiatrie (Switzerland)
- Hôpitaux universitaires de Genève (HUG) (Switzerland)
- Mütter- und Väterberatung Kanton Bern / Centre de Puériculture Canton de Berne (Switzerland)
- Universitäts-Kinderspital Zürich, Zentrum für Schlafmedizin (Switzerland)
- Universitäts-Kinderspital beider Basel (UKBB) (Switzerland)
- 1001kindernacht (Switzerland)
- VeiligheidNL (The Netherlands)
- La Leche League Nederland (The Netherlands)
- Nederlandse Vereniging voor Kindergeneeskunde (The Netherlands)
- Nederlands Centrum Jeugdgezondheid (The Netherlands)
- Office de la Naissance et de l’Enfance (Belgium)
- UZ Gent (Belgium)
- CHU UCL Namur (Belgium)
- Infosanté (Belgium)
- Haptis (Belgium)
- Coordination Française pour l’Allaitement Maternel (France)
- La Leche League France (France)
- Naître et Vivre (France)
- Santé publique France (France)
- Collège National des Pédiatres Universitaires (France)
- Association Dans Les Bras (France)
- Ministère de la Santé et de la Sécurité sociale (Luxembourg)
- Initiativ Liewensufank (Luxembourg)
- UNICEF Luxembourg (Luxembourg)
- The Lullaby Trust (United Kingdom)
- Baby Sleep Information Source (BASIS), Durham University (United Kingdom)
- La Leche League Great Britain (United Kingdom)
- UNICEF UK Baby Friendly Initiative (United Kingdom)
- Royal College of Midwives (United Kingdom)
- NCT (United Kingdom)
- Health Service Executive (Ireland)
- Irish Neonatal Health Alliance (Ireland)
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Safe to Sleep (USA)
- Academy of Breastfeeding Medicine (USA)
- Mother-Baby Behavioral Sleep Laboratory, University of Notre Dame (USA)
- Attachment Parenting International (USA)
- Canadian Paediatric Society (Canada)
- Public Health Agency of Canada (Canada)
- La Leche League Canada (Canada)
- Red Nose Australia (Australia)
- Australian Breastfeeding Association (Australia)
- Raising Children Network (Australia)
- The Royal Children's Hospital Melbourne (Australia)
- La Leche League Italia (Italy)
- Uppa (Italy)
- Asociación Española de Pediatría (Spain)
- Asociación Española de Pediatría de Atención Primaria - PrevInfad (Spain)
- IHAN España (Spain)
- GuíaSalud (Spain)
- Junta de Andalucía - Consejería de Salud y Consumo (Spain)
- Sociedade Portuguesa de Pediatria (Portugal)
- Hospital Professor Doutor Fernando Fonseca (Portugal)
- Ordem dos Enfermeiros (Portugal)
- Athens Medical Group (Greece)
- MNB Center (Greece)
- Türk Neonatoloji Derneği (Türkiye)
- DBE Davranış Bilimleri Enstitüsü (Türkiye)
- Sivas Numune Hastanesi (Türkiye)
- Fundacja Rozwoju Edukacji „Trefl” - Równoważni (Poland)
- Medycyna Praktyczna (Poland)
- Poradnia Psychologiczno-Pedagogiczna nr 16 - Praga-Południe (Poland)
- DOZ.pl (Poland)
- Laktační liga (Czechia)
- Fakultní nemocnice Ostrava (Czechia)
- MAMILA, o. z. (Slovakia)
- Szoptatásért Magyar Egyesület (Hungary)
- La Leche League Romania (Romania)
- Regina Maria (Romania)
- Roditelji u akciji - Roda (Croatia)
- UNICEF Slovenija (Slovenia)
- Nacionalni inštitut za javno zdravje - program ZDAJ (Slovenia)
- Ida-Tallinna Keskhaigla (Estonia)
- Bērnu klīniskā universitātes slimnīca - Vesela pasaule (Latvia)
- Padedu augti (Lithuania)
How families sleep
- Modrý koník (Czechia, 2024)
- BabyForum.at (Austria, 2022)
- Kvinneguiden.no (Norway, 2025)
- Printesa Urbana (Romania, 2020)
- BabyForum.at (Austria, 2018)
- Girls Channel (Japan, 2022)
- Girls Channel (Japan, 2024)
- Girls Channel (Japan, 2015)
- Vauva.fi (Finland, 2021)
- Ouders.nl (The Netherlands, 2016)
- Modrý koník (Czechia, 2025)
- Mumsnet (United Kingdom, 2024)
- Mumsnet (United Kingdom, 2025)
- Bukefalos.se (Sweden, 2024)
- Babyverden.no (Norway, 2026)
- Kafeteria.pl (Poland, 2009)
- D'Souza et al. 2023, Family Relations
- D'Souza et al. 2024, Australian Psychologist
- YouGov for Bolius: Children and Housing 2019
- Sovende Børn reproduces the separate breakdown for 3-4-year-olds
- IKEA and onSpot: Sleeping habits in SEE (2024)
Celebrities
- Isabella Löwengrip
- Kim Feenstra
- Kenza Zouiten
- Brad Pitt
- Sara Kulka
- Jeanne Lindstrøm
- Anabel and Swen (Geburtshelden)
- Janni and Peer Kusmagk
- Yvonne Laborda
- Cellina Martinna's sister
- The Constable family
- Amira Aly in Promiflash
- Leslie Keijzer in eo.nl
- Jacky Nobels in oudersvannu.nl
- Yolanthe Cabau in Kek Mama
- Mirjam «Mimi» Jäger in Blick
- Tabea Heynig in Promiflash
- Julie Jay in Irish Examiner
- Natalia Siwiec in Ofeminin.pl
- Yeliz Koc in promiflash.de
- Ioannis Apergis in antenna.gr
- Julia Hartmann in marieclaire.de
- Katy Perry in bustle.com
- Mikkel Kryger in Dagens.dk
- Monique Westenberg in weekbladparty.nl
- Deena Nicole Cortese in usmagazine.com
- Susanna Griso in larazon.es
- Brooke Shields in tmz.com
- Rasmus Seebach in tvguide.dk
- Anna Pásztor in story.hu
- Laura Chiatti in DonnaGlamour
- Silviu Țolu in libertatea.ro
- Mikkel Kryger in Vores Børn
- Tracy Lauren Marrow (Ice-T) in usmagazine.com
- Roman Tomeš in zeny.iprima.cz
- Katie Price in netmums.com
- Frankie Bridge in The Mirror
- Kristen Bell (and Dax Shepard) in Motherly
- Ada Alexandra Moldovan in baby.unica.ro
- Nicole Polizzi in usmagazine.com
- Alecia Beth Moore Hart (P!nk) in romper.com
- Anna Lewandowska in Viva.pl
- Dayan Kodua in hauptstadtmutti.de
- Antonella Clerici in Gossip.it
- Claudia Zanella in dilei.it
- Fritz Karl in bild.de
- Charley Webb in netmums.com
- Felix Smith in Vores Børn
- Jan Hartmann in abendzeitung-muenchen.de
- Milla Jovovich in GoodtoKnow
- Kathrin Szabo in afilii.com
- Stacey Solomon in CafeMom
- Chrissie Swan in mamamia.com.au
- Lisa Harmann in stadtlandmama.de
- Anna Luz de León in berlinmittemom.com
- Mayim Bialik in Kveller
- Pampita (Carolina Ardohain) (guioteca.com)
- Paula Chaves (tn.com.ar)
- Anouk Van Nuffel (vraagdevroedvrouw.nl)
- Sabria Ben Abid (parentia.be)
- Luana Piovani (tvefamosos.uol.com.br)
- Alanis Morissette (usmagazine.com)
- Francesca Farago (TikTok)
- Eva Burešová (extra.cz)
- Kristýna Leichtová (damskydenik.cz)
- Anna Maria Damm (Instagram)
- Caroline Hamann (bild.de)
- Christian Lüdke (focus.de)
- Daniela Katzenberger (krone.at)
- Danielle Graf and Katja Seide (stadtlandmama.de)
- Dorothee Dahinden (mutterkutter.de)
- Georgina Fleur (promiflash.de)
- Heidi Klum (romper.com)
- Katharina Gail (littleyears.de)
- Katharina Saalfrank (spiegel.de)
- Laura Maria Rypa (rtl.de)
- Laura Osswald (bunte.de)
- Lucas Cordalis (promiflash.de)
- Nina Lippus (Instagram)
- Nora Imlau (hotelmatze.podigee.io)
- Susanne Mierau (focus.de)
- Frederikke Toftsø (tothemoonhoney.com)
- Hans Lindberg (DR)
- Helle Hirshals (Instagram)
- Linda Toft (Instagram)
- Line Schjelde (Instagram)
- Lola Jensen (avisen.dk)
- Maja Sülau (Instagram)
- Mercedes (@mercedeslykke) (Instagram)
- Mette Thune Lauvring (Instagram)
- Nanna Bhonore (Instagram)
- Nanna Kielgast Freving (Instagram)
- Simone Lykke (TikTok)
- Sofie Bøcher Lindquist (Instagram)
- Carlos González (20minutos.es)
- Eduard Estivill (Bebés y Más)
- Elsa Pataky (Bebés y Más)
- Esther Acebo (lavanguardia.com)
- Pablo Iglesias Turrión (divinity.es)
- Toñi Moreno (hola.com)
- Beáta Leppilampi (Instagram)
- Ella Kanninen (meillakotona.fi)
- Leo Stranius (leostranius.fi)
- Salla Salmela (sallasalmela.fi)
- Camille Tissot (paroledemamans.com)
- Giuseppa Ciurleo (nextplz.fr)
- Laëtitia Milot (parents.fr)
- Michel Cymes (Parents.fr)
- Mélanie Gonzalez (allocine.fr)
- Tiziri Digne (married to footballer Lucas Digne) (TikTok)
- Helen Flanagan (Yahoo Celebrity UK)
- Helen Skelton (broodmagazine.com)
- Josie Gibson (Yahoo Life UK)
- Katie Bunton (TikTok)
- Tamara Ecclestone (heart.co.uk)
- Roula Revi (mama365.gr)
- Doris Pinčić Rogoznica (story.hr)
- Amanda Cassidy (image.ie)
- Rachel O'Dwyer (irishtimes.com)
- Tony Cantwell (irishtimes.com)
- Jyothika (parentcircle.com)
- Revathi (Revathy) (parentcircle.com)
- Bianca Balti (grazia.it)
- Diletta Leotta (rumors.it)
- Edoardo Stoppa and Juliana Moreira (Gossip.it)
- Federica Piersimoni (federicapiersimoni.it)
- Giulia Belmonte and Stash (The Kolors) (Gossip.it)
- Nozomi Tsuji (grapee.jp)
- Coco Sabajo-Lanen (linda.nl)
- Laura Ponticorvo (Kek Mama)
- Benedicte Haugaard (Instagram)
- Gulsem Kaya Engebretsen (TikTok)
- Line Hagen (TikTok)
- Maren Thjømøe (TikTok)
- Milna (TikTok)
- Sunniva Strand (TikTok)
- Agnieszka Wolszczyk (ofeminin.pl)
- Dominika Serowska (dziendobry.tvn.pl)
- Kamila Ryciak (ladnebebe.pl)
- Maja Hyży (stronakobiet.pl)
- Weronika Rosati (fakt.pl)
- Jessica Athayde (cmjornal.pt)
- Liliana Aguiar (hiper.fm)
- Anca Serea (cancan.ro)
- Laura Cosoi (protv.ro)
- Roxana Blagu (ego.ro)
- Vlăduța Lupău (radioimpuls.ro)
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- Asabea Britton (asabeabritton.com)
- Ellinor Bjurström (Instagram)
- Johanna Stannow (TikTok)
- Kenza Zouiten (Blog)
- Li Sanne (TikTok)
- Martina Švab (svet24.si)
- Saša Lendero (govorise.metropolitan.si)
- Ráchel Karnižová (spuntik.zoznam.sk)
- Damla Çeliktaban (haberturk.com)
- Taner Ölmez (diziler.com)
- Alicia Silverstone (The Independent)
- Alyssa Milano (celebdailymag.com)
- Christina Ricci (Motherly)
- Danica McKellar (abcnews.com)
- Gwen Stefani (usmagazine.com)
- Jamie Otis (usmagazine.com)
- Jessie James Decker (thedailybeast.com)
- Kate Albrecht (usmagazine.com)
- Kim Kardashian (Promiflash)
- Kourtney Kardashian (Marie Claire)
- Kristin Cavallari (Fox News)
- Milla Jovovich (The Independent)
- Nicole Natalie Marrow (Coco Austin) (amomama.com)
- Rumer Willis (foxnews.com)
- Scott Galloway (TikTok)
- Tia Mowry (Romper)
- Tyra Banks (usmagazine.com)
- Marta (@martamie) (TikTok)
Adults, couples and pets
- YouGov for National Bed Federation 2020; Sleep Council 2009
- AASM 2025
- ResMed 2025, survey across multiple countries
- t-online 2023, unreliable source
- Dyson 2022
- Drews et al. 2020 (Kiel)
- Andre et al. 2021
- Agria 2023, 810 owners
- Agria 2024, 611 owners
- Rover 2024, 1,000 owners
- Petplan, year not stated
- YouGov 2025
- Whiskas 2025, 1,000 owners
- YouGov for Galaxus
- Rover 2025, 1,000 owners
- Houzz 2015
- APPA 2023-24
- Houzz 2024
- Purina 2019
- Budget Direct 2024
Each of the 121 studies in the research overview is linked within the overview itself.