It's even recommended that you wear a bra to to sleep in, since your breasts may be sensitive, not to mention you'll want to avoid unnecessary flopping around and stretching of the muscles responsible for keeping the ladies nice and perky! Suffice it to say, you'll want to avoid underwire and clasps in your nighttime bra, so I have a great recommendation:
Check out the Comfort Maternity Bra by Coobie available on Nursing Bra Express for $22. It's extremely supportive, almost like a sports bra, and so super comfortable! No underwire and yet completely supportive - I'm a size C/D and since having a few bouts of mastitis while breastfeeding my son in underwire bras, I've since given them the heave ho and have been sooooo happy!
WIN A FREE MATERNITY BRA!!!!
That's right!! The grand prize winner of my Best for Your Bump Giveaway will win her choice of Coobie's Comfort Maternity Bra (below right), Strappy V-Neck Lace Trim Maternity Bra (below left), or Strappy Seamless Maternity Bra (below center) - courtesy of Nursing Bra Express!
Disclaimer: Although I did receive these products free of charge, all thoughts and opinions are my own and completely unbiased.