Anhawsterau cysgu: 8 i 12 oed
| Young Minds | Sleep Problems |
| Action For Children | Sleep |
| Childline | Problems Sleeping |
| NHS | Healthy Sleep Tips |
| Niwrowahaniaeth Cymru | Taflen Gyngor ar Gwsg ar gyfer plant niwrowahanol |
| Young Minds | Sleep Problems |
| Action For Children | Sleep |
| Childline | Problems Sleeping |
| NHS | Healthy Sleep Tips |
| Niwrowahaniaeth Cymru | Taflen Gyngor ar Gwsg ar gyfer plant niwrowahanol |