Disclosed are apparatus and methods for managing thread resources. A computing device can generate threads for an executable application. The computing device can receive an allocation request to allocate thread-specific memory for an executable thread of the threads, where thread-specific memory includes a call stack for the executable thread. In response to the allocation request, the computing device can: allocate the thread-specific memory and indicate that the executable thread is ready for execution. The computing device can execute the executable thread. The computing device can receive a sleep request to suspend executable thread execution. In response to the sleep request, the computing device can determine whether the allocated thread-specific memory is to be deallocated. After determining that the allocated thread-specific memory is to be deallocated: the thread-specific memory can be deallocated and an indication that the executable thread execution is suspended can be provided.