For a temporary need (children at present to adulthood) you would be well served by term insurance.  There are basically two types--decreasing and level, in varying lengths.  The decreasing type does what the names implies--the amount payable at death (face amount) goes down each year, as your children get closer to being grown.  This type is also used for covering home mortgages.  Typical term periods are either 15 or 30 years.  The other type stays level for commonly 5, 7, 10, or even 20 years.  Make sure you get a policy that is guaranteed renewable at the end of the term period, and is guaranteed convertible to a permanent (whole life or variation) throughout its life, should you desire to switch to a permanent plan later.  This avoids having to re-qualify health-wise should you develop prohibitive health problems.  Typical amounts  are 6-8 times your annual income.  Term insurance is cheap, especially as you fit exactly the profile of who companies wish to insure--young, healthy, non smoker.  You can get a rider for your kids also for less than $5.00/mo. that is convertible at their adulthood also, and covers all children, future step-children, future adopted children, future born-to-you children--all for the same $5.00.  People only buy life insurance because they care about someone else--rarely for selfish reasons.  Your children are lucky.  Best wishes.