
The tension in this category is real: the lenses that work best for sleep are the ones that look most obviously tinted. Here is how to navigate that without pretending it away.
The honest trade-off, stated plainly
Effective blue blocking requires visible tint. Clear lenses marketed as blue blocking filter very little in the range that matters for sleep.
So you cannot have a lens that is both maximally effective and visually neutral. Any product claiming that is overstating.
What you can do is choose the right tint for the right context, which is the practical answer.

At home in the evening — go for amber or red. Nobody is judging, and this is where the sleep benefit actually lives.
Working late but on colour-sensitive work — light amber, accepting a compromise on both.
Out in the evening — light tint if you want them to look like ordinary glasses. Accept reduced effect.
Night shift commute in daylight — deep amber or red. Function entirely over form here.
Many people end up with two pairs for this reason, and that is a rational outcome rather than a failure.

Coverage matters functionally — light reaching your eyes around the frame is unfiltered.
Oversized and round frames give good coverage and are currently in style, which is convenient
Cat-eye shapes can leave gaps at the outer corners depending on face shape
Narrow rectangular frames look sharp and cover least
Wraparound gives the most coverage and the least conventional look
For evening-only use, prioritise coverage. For a pair you will wear publicly, accept the compromise knowingly rather than assuming you are getting full function.

Fit specifics
The frame should sit level without pressing into your temples
Silicone nose pads reduce slipping, which matters in Indian heat
Lighter materials such as TR90 are more comfortable for long evening wear
Arms should not catch on hair when putting them on or taking them off
If you wear them over the ears with hair down, check they do not pull
A practical point that rarely gets covered.
Larger, more curved lenses sit further from the face and are less likely to brush against lashes or transfer product onto the lens. If you wear mascara or lash extensions, this is worth factoring in.
Frames sitting very close to the face will smudge, and you will stop wearing them. That is the actual failure mode for most people, not the optics.

Add a blue-filter coating to your prescription lenses for convenience, accepting that coatings are typically light rather than deep amber.
Or keep a separate tinted pair for the evening at home, where the sleep benefit is concentrated and appearance matters least. This is usually the more effective route.
Fit-over styles work but are bulky.
Buy for the context where you will actually wear them. If that is the evening at home, take the amber and take the benefit.
If you need a pair for public wear, buy one, but know that a light tint is a compromise on effectiveness rather than a free lunch.
This article is for general information and is not medical advice.