The Bose is again the best to sleep on, and the PXC 250 starts hurting really quickly.- Connectivity: Since both the PX 250 and QuietComfort are wired models, this is where the Momentum shines

Love the Bose, but the Momentum 2 has a brighter and cleaner sound.

Others have mentioned but they don't have as strong of noise cancellation as Bose

I first received the Bose, positives they were REALLY comfortable and the noice cancellation was excellent, maybe a bit too excellent

(I briefly tried a BOSE at the similar price range, but I prefer this one for less boosted bass and high tone.)Only thing you may want to know before purchase is you can't expect much on its noise cancelling

The Bose is again the best to sleep on, and the PXC 250 starts hurting really quickly.- Connectivity: Since both the PX 250 and QuietComfort are wired models, this is where the Momentum shines

The Bose sounded very crisp but these Sennheisers take it to the next level

The other is that, while my Bose AE2W is comfortable, it is hot.

The Bose on the other hand I can wear much longer, like for the entire 7-8 hour flight to Europe.- Comfort while trying to sleep: The Momentum is the worst of the lot if you try to sleep sideways with your head as I tend to do