| Clue | Source | Date |
|---|---|---|
| Bedding options | USA Today | 30 Jun 2022 |
| Foldable beds | Premier Sunday | 03 Oct 2021 |
| Foldable mattresses | USA Today | 08 Aug 2021 |
| Mattresses for the floor in Japan | Irish Times Simplex | 16 Feb 2021 |
| Places to crash | New York Times | 31 Dec 2020 |
| Relatives of sleeper sofas | The Washington Post Sunday | 17 Nov 2019 |
| *Foldable beds | Universal | 12 Feb 2019 |
| *Foldable beds | ||
| Endless furore about fashion for beds | ||
| Foldable beds | New York Times | 04 Mar 2018 |
| Foldable beds | ||
| Thin mattresses | Thomas Joseph | 29 Aug 2017 |
| Beds in some bachelor pads | ||
| Versatile furniture | ||
| Bachelor pad beds | ||
| Bachelor pad beds | ||
| Japanese beds | ||
| Japanese mattresses |