My hamster seems to lie down all the time?

my gerbil does the same thing its just something they enjoy to do. They love to run so they run a long time and get tired and flatten out in he bedding they probably think it is comfortable that way. Your hamster is totally fine trust me i would know. lolz ( my gerbil noodles, my sister named him) That's just her personality they are like humans in the sense they are all different! HOPE THIS HELPS!!!! :)