S.H.
All I have used since my daughter was born, 8 years ago, is a fan. An oscillating fan.
Use it for my son too, and he is 4.
I still use it everyday for naps and bedtime.
ALL these years.
Simple.
Easily replaceable too.
I have had this SAME fan, all these years. 8 years. But I actually have owned this same fan, for at least 5 years prior.
I use it everyday.
Still works.