This seems like a very niche request, so I'm going to ask for advice here. I want to be able to sleep in a moderately noisy environment (TV ~10m away on loud volume with just one interior door in between) while retaining the option of being woken up by an alarm. So straightforward noise blocking isn't a good option since it would also block the alarm unless it was very loud. An option I'm considering is noise cancelling headphones connected to a phone/tablet/whatever to play an alarm through the headphones. Since I'll be using them only for that purpose, sound quality isn't at all important. Being able to sleep on my side while wearing them is. The noise cancelling working well enough is. But not well enough to block a fire alarm. Just in case. Although the nearest alarm speaker is about 2m away and the noise is "flight or fight" level, so I doubt if that would be a problem. Having said that, if it turns out that there isn't anything to meet those requirements that is also cheap, I'd consider using them as my main headphones too. My Panasonic RP-HTX7 headphones were probably the best headphones <£50 a few years ago, but I have a lot more spare money now and I'd consider spending maybe as much as £150 if the upgrade is really significant. I don't really need noise cancelling at home (my working hours mean that I'm almost always gaming at night, so there's very little external noise anyway) but hey, new toy I'd prefer a cheap option though, so I don't end up carrying about a £150 pair of headphones every day (I often doze between split shifts at work and that's where I'd want the noise cancelling).