Newton Baby Breathable 2-Stage Crib Mattress

The mattress to choose if you dread nighttime leaks. There is no foam, latex or springs inside, just a polymer core you can rinse in the shower with soap and cool water, while the cover goes in the washing machine. A stomach bug or a leaking diaper becomes a wash-and-dry job rather than a reason to replace the mattress. Its two-stage design carries on into the toddler years, and it is GREENGUARD Gold certified. At about $300 it costs more than a good foam mattress, and it still needs nothing on top but a fitted sheet.