I hatch 2 black silkies 5 days ago both doing great eating drinking and pooing lots . When they first born I put them in the brooder with just a anti slip mat and when ever I went to check on them they where alway standing up even at night today I cleaned them out again as they where pooing lots and put down wood shaving as well as the Anti slip mat and they seem to love it but have noticed they are now sleeping lots and roosting more is this normal?