Does anyone know of any angled bassinets or angled sleeping spaces that are verified as safe for baby to sleep in unsupervised? Our 4 week old son will not sleep on any flat surfaces, for some reason. He will nap in his swing or his car seat, but I definitely wouldn’t let him sleep in either one unsupervised.

Right now my husband and I split shifts so that one of us is up with him 24/7 because he’ll only sleep in our arms, in his swing, or his car seat. Wondering if some sort of angled bassinet would work so that we could all sleep at the same time...