What type of insurance product is designed to provide a level death benefit until the insured reaches age 100?

The product designed to provide a level death benefit until the insured reaches age 100 is Whole Life Insurance. This type of insurance guarantees a death benefit that remains constant throughout the life of the policyholder, as long as premiums are paid.

Whole Life Insurance also includes a savings component, known as cash value, which accumulates over time on a tax-deferred basis. By age 100, the policyholder typically has built up enough cash value that it equals the death benefit, effectively ensuring that the insurance remains in force for the entirety of the insured’s life.

Term Life Insurance, on the other hand, provides coverage for a specific period and does not accumulate cash value, hence it does not guarantee a death benefit until age 100. Single Premium refers to a type of policy paid in a single lump sum, but does not specifically relate to a level death benefit until age 100. Universal Life Insurance offers flexible premiums and death benefits, and while it can provide lifelong coverage, the death benefit isn’t guaranteed to be level as it may vary based on the policy's cash value growth and the insured's age.