Reading some of these sex post make me worried. Wife and I have young kids and a good marriage. We don't get time alone that often...?

Why be sad because others say that they are sad? You are right this is a phase and it will pass as the children grow. You and your wife are doing what so many do not do. Instead of complaining and fighting and cheating you two make the most of whatever time you do have. Sounds to me like you have the thing figured out you know this will pass and you are committed to each other and still find time to be lovers. I think you should be happy and show the sad ones that it can work out More power to ya

We raised FOUR kids in a two bedroom house...no kids in your BR...period

GET THE KID OUT OF YOUR ROOM. Easily the biggest mistake on this site from parents complaining about their sex life

Stop comparing yourself to other people to determine if you are happy.

There's absolutely no reason for sadness if this is an arrangement with which both of you are satisfied. If it isn't, then you should cooperate to improve it.

You stated your marriage is good, its idiotic to be sad because someone else is or your marriage doesnt fit into someone elses mold. Be content with the way things are working for you, if you want things to be different/better then make necessary changes to accomplish that goal. Your one mistake..... allowing child to sleep with you. Child should be taken to his her own bed once asleep so you and wife can enjoy each other more often.

Why would you be 'sad' just because other people are? That doesn't make sense at all. Your emotions should be based on what affects you. If you're okay with your situation, why be sad? If you don't like your situation, then change/adjust it.

Should you be sad? Only if there's something occurring in your life to be sad about.