A newborn baby has a lot of concerns to watch at especially at night. Nightly, you watch at cries resulting from soaked nappies, change them as needed, watch also for regular feeds as delays are often a call from the baby by way of cries and disturbances to the sleeps of all at home mostly the mom.
where atmospheric conditions fluctuates, put on suiting clothing or light dressings with just a panty support but watch for urine spill-over/markintoge will help.
Most neonates appreciate ambiance temperatures do ventilate especially within closed doors and windows but watch against draft.