Combine these two sentences without using any conjunctions.
He slept soundly. He did not hear the thunder.
Sleeping soundly, he did not hear the thunder.
Complete the following task based on the instruction and optional input provided.### Instruction:
Combine these two sentences without using any conjunctions.

### Input:
He slept soundly. He did not hear the thunder.

### Output:
Sleeping soundly, he did not hear the thunder.