Why two thin blankets are warmer than one thick blanket?

Whenever you feel cold I will suggest you take 2 thin blankets instead of 1 thick blanket. But why??
Because 2 chocolates are always better than one, just joking:-):-)
To understand this we first need to know about bad conductors of heat.

Why two thin blankets are warmer than one thick blanket
                                         Image source- Aumsum Time

Bad conductors of heat

Any object which resists the heat is called a bad conductor of heat. Air, wood, glass,etc all are said to be bad conductors of heat because they do not allow heat to pass through them.

Why this happens?

In a thick blanket, heat can easily escape through it not providing better warmness but when you take two blankets, air gets trapped between the layers of two blankets ,and acts as a bad conductor of heat and does not allow it to escape. 

If you sleep with more than 2 blankets then it would be best but you will die under their weight:-):-)

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