"Naps are not an option based on your baby's wants. When naptime comes, the baby goes down...Mom, not baby decides when the nap starts. Mom, not baby decides when the nap ends. If your baby wakes up crying or cranky, it's most often because he or she has not had sufficient sleep*. Other factors to consider are a dirty diaper, a noisy neighbor, sickness coming on, or an arm or leg stuck between the crib slats." On Becoming Baby Wise by Gary Ezzo, M.A. and Robert Bucknam, M.D. (*disposition for a 4-6 month old)
But what do you say?