My dog is not sleeping for some reason she is young and healthy but she seems to be restless all the time she will lie down and recently she started dozing but I think there's something wrong as her nose is dry (suggestions immediately)

How old is she? Any other issues (eating, drinking)?

She can't be awake 24/7, she wouldn't survive. So, when does she sleep, and for how long?

How often is she walked or exercised?

What breed is she?

Is she crate trained?

Is she spayed?

Any major changes in the house?

When was the last vet check?

How long has this issue been going on?