Can you take out travel insurance with two different companies if you are going away for more than 31 days?

What are you taking insurance out on? And no 99% of the time you cannot have 2 insurance policy's on one vehicle, item, house or property, or in genral anything you are insuring.

The only time you can have 2 insurance policy's, if you are re-insuring something. This only really applies to the commercial side of things. Example company A is insuring the first 10 million dollars of a building. Then company B is insuring 20 million dollars of the rest of the 30 million dollar building. The building totaling 30 million dollars in value.

We are going on holiday to Spain for just over 2 months. I have free Travel Insurance through my bank for 31 days but it is far too expensive for the whole period. I want to insure through the bank for the first 31 then insure through another insurance company for the remaining 45 days.