I got hand me downs bc my brother kids just got out the toddle r beds. Which are the same size usually. How it helped
At first i thought it mattered to. But it doesn't. Its a simple crib and baby mattress will work. Make sure you get baby mattress our yet new born mattress bc they have them breathable and plastic, for poop, throw up, blah blah. Main thing is safety. So make sure its a newborn one as well as the bedding.