They are unable to fly, so the only way that they can get to your bed is by one of three ways: climbing the wall to fall onto it from the wall, transferring by clothing dropped on the bed or climbing up the legs to get to the mattress.
While you could theoretically kill bed bugs by putting items in your freezer, it would be a bit impractical. You would need to ensure that your freezer is staying at or below 0 degrees Fahrenheit, and you would need to keep the items in there for at least 80 hours. A better alternative
How long do you freeze your clothes to kill bed bugs? How long you would need to freeze your clothes to kill all live bedbugs in or on them and any eggs, really depends on how low the temperature
Putting infested objects like clothes or bedding in a freezer can help get rid of the bed bugs, but each item should be placed in a plastic bag prior to freezing. Keep the temperature at -19 degrees Celsius for about four days in order to be effective.
If your freezer is able to maintain a temperature colder than that, you can get rid of the pests even faster. At around -4 degrees Fahrenheit, bugs and eggs are destroyed in about 2 days. Putting your stuff outside. Now you know that you can use the controlled freezing temperatures in your freezer to kill bed bugs.
2. Freezing Bed Bug. You can get rid of bed bugs using freezing conditions. This method is particularly useful in killing bedbugs in smaller items. Freezing makes ice to form inside the bedbug which causes injury or death to them. Although, bed bugs can live for a long period before they finally die.