Anyone who sleeps with their windows open at night is urged to use this $13 device to keep cool without inviting 'an army of pests' inside

Green paneled bedroom with brown wooden ornate bed with half-height posts, and a large Crittal window in sage. The yellow patterned curtains are floor-to-ceiling height.

One of the first things we do when the weather warms up is open our windows. It's a quick, cost-efficient, and fuss-free way to cool down your bedroom at night.

However, our pest pros warn that you may well be inviting pests into your home. That's why they recommend using a $13 pest screen from Amazon, also known as window limiters, especially at night.