Hedgehog cage has tiny tiny black bugs?

My hedgehogs cage has these teeny tiny black bugs in it. i cannot figure out what they are. They are in and on her lil black fleece pocket but i havent seen them anywhere else. she has a lil tent under her dome but there arent any there. She's been sleeping in her pocket lately so i think that why they are only there. She looks like shes losing quills but im not really sure. it really only shows when she balls up and kinda around her ears and shes itchy. when i squash the bugs, its red, like a flea would be from feeding on an animal. i looked up mites, fleas, etc. online and nothing is coming up that looks like what i have. if anyone has any ideas or knows what they are please let me know. i really appreciate it.