Lighting, Light Fixtures, Ceiling and Exhaust Fans - Lights cycle on and off

I have small recessed light fixtures in the bedroom ceiling. Periodically two of them cycle off and on. I have changed the bulbs several times with no change. Is this a socket problem or maybe an overheating issue caused by too much insulation packed around the fixtures in the attic?

I have known of several situations similar to this and in the cases I heard about it was all tied to overheating.This could be caused by insulation etc however you need to make sure that the bulbs in your fixture do not exceed the wattage recommendations of the fixture.If this isn't the case then check to make sure that the fixture's ventilation has not been blocked by either insulation or other possible issues such as installation error like being too close to something that blocks air flow or even coats of paint over vent openings.I've seen all of these.Finally a factor simply could be how long the fixture is being left on.Leaving it on for long periods of time will cause heat build up and could be causing the fixture to cycle off.

I agree with everything David said. Overwattage is the most common cause. Make sure your bulbs are no more than 75 watts (65 watts is better). And make sure the bulbs are appropriate type for the can (usually you want "R" or "BR" bulbs). Then go up in the attic and make sure all the insulation is no closer than 3 inches to the can (unless the can is marked "IC" rather than "non-IC").

If all of that fails, you may need to replace the thermal cutoff.

Thanks for the suggestions. These light are actually mini floods and I have verified that the bulbs are the correct size for the fixture. I will check the attic insulation next and let you know the results.