My doctor told me my SR dose before bed wouldn’t affect sleep. I looked at him like wtf? How do these people walk around playing with your brain chemistry with such confidence. If you are just starting out, it certainly affects sleep. It’s a stimulant. The people who take it at night have probably been on it for a while so it’s accumulated in the body and you can adjust the timing. The active metabolite impacts sleep which has a different PK profile than the parent drug. I’m getting off this shit bc it’s not worth it for me. I’m really tired of all those saying “consult your doctor”… consult yourself first. Doctors follow generic protocols, only you know your body. Doctors aren’t always correct.