Stokke Sleepi 3-in-1 Convertible Crib with Mattresses and Extension Kit

If you want one bed from birth to about age 5, this is the one that does it. The oval Sleepi Mini serves the first six months beside your bed, then the extension turns it into a full-size Sleepi Bed for use up to about age 5. At 25.2 inches wide, the Mini suits a small bedroom, the base adjusts in height for easier lifting, and lockable swivel wheels let you move it. Cost is the catch: about $1,299 for the bundle with both mattresses, against a few hundred dollars for a separate bassinet and crib. The oval shape also means a standard crib mattress will not fit, so a replacement has to be one made for the Sleepi.