I came home today and found my Beardie still sleeping under his bed time blanket. In the exact same position as when I left this morning. He is about 15 months old and going through a fairly big shed. His head/face shed yesterday and his legs and belly will shed soon. I know they can be less active when shedding, but he has NEVER stayed in bed all day. Lol. When I took him out, he ran around for about 5 minutes then snuggled up in his usual spot on my chest and went back to sleep. He is looking around so.e, but has no more interest in running around.
Sounds like he is moping a bit because the shed has him uncomfortable. I've seen them do that before. It usually stops when the shed ends though so keep an eye on that behavior.