[2] In February 2006, Sleepycat was acquired by Oracle Corporation, which continued developing Berkeley DB.

[3] The founders of the company were spouses Margo Seltzer and Keith Bostic, who are also original authors of Berkeley DB.

Another original author, Michael Olson, was the President and CEO of Sleepycat.

[5] Sleepycat distributed Berkeley DB under a proprietary software license that included standard commercial features, and simultaneously under the newly created Sleepycat License, which allows open source use and distribution of Berkeley DB with a copyleft redistribution condition similar to the GNU General Public License.

[2] Sleepycat had offices in California, Massachusetts and the United Kingdom, and was profitable during its entire existence.